Landsat-TM and SPOT-HRV image data applied to geomorphologic mapping in a section of Taquari river, Brazil
Autor(a) principal: | |
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Data de Publicação: | 1998 |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Pesquisa Agropecuária Brasileira (Online) |
Texto Completo: | https://seer.sct.embrapa.br/index.php/pab/article/view/5054 |
Resumo: | This study evaluates the contribution of both Landsat-TM and SPOT-HRV data to geomorphologic mapping in a section of Taquari river (Mato Grosso do Sul State, Brazil). Analogic and digital TM and HRV data of different acquisition times were analyzed. Digital enhancement techniques were applied to these data sets, and multispectral color composites were obtained. Nine relief units were obtained from the analysis and interpretation of TM, HRV and topographic maps, together with information obtained from the field survey. These units were grouped into three categories according to its morphogenesis: structural/denudational forms (scarps), denudational forms (pediments, tables, hills and residual relief) and depositional forms (floodplains, Pantanal, the latter divided in low, medium and high moisture areas). The structural/denudational and denudational relief features were classified according to dissection levels and relief and slope classes. Based on the results, one can conclude that it is possible to elaborate geomorphologic maps based on both TM and HRV data, at 1:100,000 scale. Nevertheless, topographic maps are essential to define more precisely the relief units, as well as the morphometric indices. |
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Landsat-TM and SPOT-HRV image data applied to geomorphologic mapping in a section of Taquari river, BrazilImagens TM-Landsat e HRV-SPOT na elaboração de cartas geomorfológicas de uma região do rio Taquari, MSgeomorphology; remote sensing; high Paraguai basin; Pantanal wetlandgeomorfologia; sensoriamento remoto; bacia do Alto Paraguai; PantanalThis study evaluates the contribution of both Landsat-TM and SPOT-HRV data to geomorphologic mapping in a section of Taquari river (Mato Grosso do Sul State, Brazil). Analogic and digital TM and HRV data of different acquisition times were analyzed. Digital enhancement techniques were applied to these data sets, and multispectral color composites were obtained. Nine relief units were obtained from the analysis and interpretation of TM, HRV and topographic maps, together with information obtained from the field survey. These units were grouped into three categories according to its morphogenesis: structural/denudational forms (scarps), denudational forms (pediments, tables, hills and residual relief) and depositional forms (floodplains, Pantanal, the latter divided in low, medium and high moisture areas). The structural/denudational and denudational relief features were classified according to dissection levels and relief and slope classes. Based on the results, one can conclude that it is possible to elaborate geomorphologic maps based on both TM and HRV data, at 1:100,000 scale. Nevertheless, topographic maps are essential to define more precisely the relief units, as well as the morphometric indices. Avaliou-se a contribuição das imagens TM-Landsat e HRV-SPOT na elaboração de cartas geomorfológicas de uma região do rio Taquari, Mato Grosso do Sul. Analisaram-se imagens analógicas e digitais do TM e HRV, de diferentes períodos de aquisição. Aos dados digitais foram aplicadas técnicas de realce de imagens e obtidas composições coloridas multiespectrais. A análise e interpretação das imagens TM, HRV e das cartas topográficas, além das informações de campo, possibilitaram identificar nove unidades de relevo, agrupadas em três categorias de acordo com a morfogênese: formas estruturais/denudacionais (escarpas), formas denudacionais (pedimentos, tabuleiros, colinas e relevos residuais) e formas de acumulação (planícies fluviais e planície do pantanal, esta subdividida em pouco úmida, úmida e muito úmida). As formas de relevo de origem estrutural/denudacional e denudacional foram caracterizadas de acordo com os níveis de dissecação e classes de amplitude de relevo e declividade. A partir dos resultados conclui-se que as imagens TM e HRV permitem elaborar cartas geomorfológicas da área de estudo, na escala de 1:100.000. Entretanto, o apoio das cartas topográficas é fundamental na definição mais precisa dos limites das unidades de relevo, bem como na caracterização morfométrica destas unidades.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraFlorenzano, Teresa Gallotti1998-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/5054Pesquisa Agropecuaria Brasileira; v.33, n. especial, out. 1998; 1721-1727Pesquisa Agropecuária Brasileira; v.33, n. especial, out. 1998; 1721-17271678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/5054/7205info:eu-repo/semantics/openAccess2015-01-22T16:32:32Zoai:ojs.seer.sct.embrapa.br:article/5054Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2015-01-22T16:32:32Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Landsat-TM and SPOT-HRV image data applied to geomorphologic mapping in a section of Taquari river, Brazil Imagens TM-Landsat e HRV-SPOT na elaboração de cartas geomorfológicas de uma região do rio Taquari, MS |
title |
Landsat-TM and SPOT-HRV image data applied to geomorphologic mapping in a section of Taquari river, Brazil |
spellingShingle |
Landsat-TM and SPOT-HRV image data applied to geomorphologic mapping in a section of Taquari river, Brazil Florenzano, Teresa Gallotti geomorphology; remote sensing; high Paraguai basin; Pantanal wetland geomorfologia; sensoriamento remoto; bacia do Alto Paraguai; Pantanal |
title_short |
Landsat-TM and SPOT-HRV image data applied to geomorphologic mapping in a section of Taquari river, Brazil |
title_full |
Landsat-TM and SPOT-HRV image data applied to geomorphologic mapping in a section of Taquari river, Brazil |
title_fullStr |
Landsat-TM and SPOT-HRV image data applied to geomorphologic mapping in a section of Taquari river, Brazil |
title_full_unstemmed |
Landsat-TM and SPOT-HRV image data applied to geomorphologic mapping in a section of Taquari river, Brazil |
title_sort |
Landsat-TM and SPOT-HRV image data applied to geomorphologic mapping in a section of Taquari river, Brazil |
author |
Florenzano, Teresa Gallotti |
author_facet |
Florenzano, Teresa Gallotti |
author_role |
author |
dc.contributor.none.fl_str_mv |
|
dc.contributor.author.fl_str_mv |
Florenzano, Teresa Gallotti |
dc.subject.por.fl_str_mv |
geomorphology; remote sensing; high Paraguai basin; Pantanal wetland geomorfologia; sensoriamento remoto; bacia do Alto Paraguai; Pantanal |
topic |
geomorphology; remote sensing; high Paraguai basin; Pantanal wetland geomorfologia; sensoriamento remoto; bacia do Alto Paraguai; Pantanal |
description |
This study evaluates the contribution of both Landsat-TM and SPOT-HRV data to geomorphologic mapping in a section of Taquari river (Mato Grosso do Sul State, Brazil). Analogic and digital TM and HRV data of different acquisition times were analyzed. Digital enhancement techniques were applied to these data sets, and multispectral color composites were obtained. Nine relief units were obtained from the analysis and interpretation of TM, HRV and topographic maps, together with information obtained from the field survey. These units were grouped into three categories according to its morphogenesis: structural/denudational forms (scarps), denudational forms (pediments, tables, hills and residual relief) and depositional forms (floodplains, Pantanal, the latter divided in low, medium and high moisture areas). The structural/denudational and denudational relief features were classified according to dissection levels and relief and slope classes. Based on the results, one can conclude that it is possible to elaborate geomorphologic maps based on both TM and HRV data, at 1:100,000 scale. Nevertheless, topographic maps are essential to define more precisely the relief units, as well as the morphometric indices. |
publishDate |
1998 |
dc.date.none.fl_str_mv |
1998-12-01 |
dc.type.none.fl_str_mv |
|
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://seer.sct.embrapa.br/index.php/pab/article/view/5054 |
url |
https://seer.sct.embrapa.br/index.php/pab/article/view/5054 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://seer.sct.embrapa.br/index.php/pab/article/view/5054/7205 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira Pesquisa Agropecuária Brasileira |
publisher.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira Pesquisa Agropecuária Brasileira |
dc.source.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira; v.33, n. especial, out. 1998; 1721-1727 Pesquisa Agropecuária Brasileira; v.33, n. especial, out. 1998; 1721-1727 1678-3921 0100-104x reponame:Pesquisa Agropecuária Brasileira (Online) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Pesquisa Agropecuária Brasileira (Online) |
collection |
Pesquisa Agropecuária Brasileira (Online) |
repository.name.fl_str_mv |
Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
pab@sct.embrapa.br || sct.pab@embrapa.br |
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1793416694577758208 |